From: Nehal Bakulchandra Shah <Nehal-Bakulchandra.shah@amd.com>
To: <mathias.nyman@intel.com>, <gregkh@linuxfoundation.org>
Cc: <linux-usb@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
"Nehal Bakulchandra Shah" <Nehal-Bakulchandra.shah@amd.com>,
Shyam Sundar S K <Shyam-sundar.S-k@amd.com>,
Mario Limonciello <mario.limonciello@amd.com>,
Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Subject: [PATCH] usb: xhci: Enable runtime-pm by default on AMD Yellow Carp platform
Date: Mon, 20 Sep 2021 21:11:00 +0530 [thread overview]
Message-ID: <20210920154100.3195683-1-Nehal-Bakulchandra.shah@amd.com> (raw)
AMD's Yellow Carp platform supports runtime power management for
XHCI Controllers, so enable the same by default for all XHCI Controllers.
Signed-off-by: Nehal Bakulchandra Shah <Nehal-Bakulchandra.shah@amd.com>
Reviewed-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
---
drivers/usb/host/xhci-pci.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 2c9f25ca8edd..0e571d6af2ab 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -69,6 +69,12 @@
#define PCI_DEVICE_ID_ASMEDIA_1142_XHCI 0x1242
#define PCI_DEVICE_ID_ASMEDIA_2142_XHCI 0x2142
#define PCI_DEVICE_ID_ASMEDIA_3242_XHCI 0x3242
+#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_1 0x161a
+#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_2 0x161b
+#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_3 0x161d
+#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_4 0x161e
+#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_5 0x15d6
+#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_6 0x15d7
static const char hcd_name[] = "xhci_hcd";
@@ -313,6 +319,15 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_4))
xhci->quirks |= XHCI_NO_SOFT_RETRY;
+ if (pdev->vendor == PCI_VENDOR_ID_AMD &&
+ (pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_1 ||
+ pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_2 ||
+ pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_3 ||
+ pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_4 ||
+ pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_5 ||
+ pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_6))
+ xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW;
+
if (xhci->quirks & XHCI_RESET_ON_RESUME)
xhci_dbg_trace(xhci, trace_xhci_dbg_quirks,
"QUIRK: Resetting on resume");
--
2.25.1
next reply other threads:[~2021-09-20 15:41 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-20 15:41 Nehal Bakulchandra Shah [this message]
2021-10-11 12:59 ` [PATCH] usb: xhci: Enable runtime-pm by default on AMD Yellow Carp platform Shah, Nehal-bakulchandra
2021-10-13 15:18 ` Mathias Nyman
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